EP3798457A1 - Outil de montage - Google Patents

Outil de montage Download PDF

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Publication number
EP3798457A1
EP3798457A1 EP20196127.3A EP20196127A EP3798457A1 EP 3798457 A1 EP3798457 A1 EP 3798457A1 EP 20196127 A EP20196127 A EP 20196127A EP 3798457 A1 EP3798457 A1 EP 3798457A1
Authority
EP
European Patent Office
Prior art keywords
ring
assembly tool
rolling elements
bearing
elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20196127.3A
Other languages
German (de)
English (en)
Other versions
EP3798457B1 (fr
Inventor
Michael Reugels
Dominik Fritz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF AB
Original Assignee
SKF AB
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Filing date
Publication date
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Publication of EP3798457A1 publication Critical patent/EP3798457A1/fr
Application granted granted Critical
Publication of EP3798457B1 publication Critical patent/EP3798457B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/51—Cages for rollers or needles formed of unconnected members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • F16C43/06—Placing rolling bodies in cages or bearings
    • F16C43/065—Placing rolling bodies in cages or bearings in cages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/467—Details of individual pockets, e.g. shape or roller retaining means
    • F16C33/4676—Details of individual pockets, e.g. shape or roller retaining means of the stays separating adjacent cage pockets, e.g. guide means for the bearing-surface of the rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/50—Cages for rollers or needles formed of interconnected members, e.g. chains
    • F16C33/502—Cages for rollers or needles formed of interconnected members, e.g. chains formed of arcuate segments retaining one or more rollers or needles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/04—Preventing damage to bearings during storage or transport thereof or when otherwise out of use
    • F16C41/045—Devices for provisionally retaining needles or rollers in a bearing race before mounting of the bearing on a shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • F16C43/06—Placing rolling bodies in cages or bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/546—Systems with spaced apart rolling bearings including at least one angular contact bearing
    • F16C19/547—Systems with spaced apart rolling bearings including at least one angular contact bearing with two angular contact rolling bearings
    • F16C19/548—Systems with spaced apart rolling bearings including at least one angular contact bearing with two angular contact rolling bearings in O-arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/31—Wind motors

Definitions

  • the present invention relates to an assembly tool for assembling a bearing ring with rolling elements according to the preamble of claim 1.
  • the present invention also relates to a method for assembling a bearing with an inner ring and an outer ring according to the preamble of claim 14 Bearing with an inner ring and an outer ring according to claim 15 and a hub unit for a turbine with two tapered roller bearings according to claim 16.
  • tapered roller bearings with one-piece cages are currently used.
  • the tapered roller bearing which is at the top in the final arrangement, has so far been equipped with a cage so that the outer ring can be assembled first and then the inner ring with the rolling elements, which are held by the cage, can be inserted with the narrow diameter downwards .
  • the use of one-piece bearing cages is essential, since the rolling elements would fall out during assembly without such a bearing cage or with bearing cages made up of individual cage pocket segments.
  • the one-piece cages ensure a self-holding function of the tapered rollers during assembly and thus enable an inner ring with a set of tapered rollers to be assembled in an upside-down position.
  • these massive cages are very expensive to manufacture and often require additional elements on the bearing inner ring, such as, for example, a specific surface topography of the guide surfaces, which causes additional costs.
  • the guidance of a cage on the inner ring or the tapered rollers can be subjected to sliding contact, which can increase the wear on the bearing.
  • the assembly tool for assembling a bearing ring with rolling elements has a ring which is designed to be arranged on a side surface of the bearing ring.
  • the bearing ring can be an inner bearing ring or an outer bearing ring.
  • the ring of the assembly tool can be designed in one piece or segmented.
  • the assembly tool also has slide elements, the slide elements being evenly distributed circumferentially around the ring.
  • the ring has receptacles for the slide elements.
  • the slide elements can be displaced in an axial direction relative to the ring and / or in a radial direction relative to the ring.
  • the number of slide elements can be equal to the number of rolling elements. Alternatively, fewer slide elements can be provided than rolling elements. In both cases, all or only some of the slide elements, for example every second one, can be moved into the end position.
  • the recordings can be produced in any way, for example as through openings such as bores, milled holes or by other production methods.
  • the slide elements can be moved from an initial position in which the assembly tool can be moved and the slide elements are not displaced relative to the ring into an end position, the slide elements being completely displaced relative to the ring in the end position, for example pushed completely through through openings are.
  • the slide elements can each consist of a profiled, preferably tubular section or a pin which can be pushed through the through opening.
  • a bearing is supplied with the outer and inner ring fitted and rolling elements and cage segments arranged between them.
  • the assembly tool is placed on the bearing ring (in particular the large diameter of an inner ring) and the slide elements are moved into their end position.
  • the bearing ring can now be lifted out of the bearing with the assembly tool, the rolling elements and the cage segments and the two bearing rings can be assembled separately from one another.
  • the assembly tool can be placed on the bearing ring (in particular the large diameter of an inner ring) and the bearing ring can be individually equipped with a combination of rolling elements and cage segments and the slide elements can be gradually moved into their end position.
  • Each rolling element can be equipped with a single cage segment or one cage segment can be provided for several rolling elements.
  • every second rolling element is preferably arranged in a pocket of a cage segment, with walls or webs of the cage segment being arranged between two rolling elements.
  • the cage segments can be designed as spacers between the rolling elements.
  • an assembly is formed by the assembly tool from the bearing ring with the rolling elements and the cage segments, which can be moved as a whole, in particular placed on a hub unit, without the rolling elements falling off the bearing ring.
  • the slide elements are designed in the End position to be arranged in each case between two rolling elements and on a contact surface of a wall of a cage segment arranged between the two rolling elements.
  • This arrangement of the slide elements can limit radial mobility of the rolling elements with respect to the bearing ring.
  • the slide elements take on the function of a bearing cage so that the rolling elements are secured between the slide elements and the bearing ring.
  • the use of a one-piece bearing cage can therefore be dispensed with.
  • individual cage segments can be used, in which the slide elements engage.
  • Such cage segments can each accommodate one or more rolling elements.
  • the cage segments can be designed as spacers, which do not completely enclose the roller, between the rolling elements.
  • a compact module can be formed from the bearing ring with the rolling elements and the cage segments and the assembly tool.
  • This module can then be used as a whole, for example in an outer ring.
  • the module consisting of the bearing ring, rolling element, cage segments and assembly tool can then be inserted into a bearing arrangement or removed from it again.
  • the slide elements are arranged in their end position in the free space radially outside the pitch circle diameter between two rolling elements, the contact surface of the cage segment and the raceway of the outer ring.
  • the bearing ring can be the outer ring, the slide elements then being arranged in their end position in the free space radially within the pitch circle diameter between two rolling elements, the contact surface of the cage segment and the raceway of the inner ring. This arrangement can ensure that the rolling elements cannot move away from the inner ring or the outer ring.
  • the slide elements can be displaced at an angle with respect to the annular surface.
  • the slide elements In their end position, the slide elements form a truncated cone shape, this truncated cone shape being based on the truncated cone shape that is formed by the roller axes.
  • the diameter of the circle, which is formed by the slide elements in their initial position, is thus greater than the diameter of the circle formed by the slide elements in their end position, or vice versa.
  • the assembly tool has a centering element in order to center the ring on the outer diameter of a guide flange of the bearing ring.
  • the centering element can thus ensure an exact radial position of the assembly tool in relation to the bearing ring.
  • the assembly tool has a fastening element in order to fasten the ring to the bearing ring.
  • a fastening means can be designed, for example, as a clamping or screwing device.
  • Such a fastening means can ensure that the assembly tool is secured on the bearing ring.
  • the ring can be attached to the bearing ring while rotating.
  • rollers can be provided, for example, which enable the ring to rotate with respect to the bearing ring.
  • the assembly tool has a spacing means for setting an axial distance between the ring and the bearing ring and / or a spacing means for setting a radial distance between the slide elements and the raceways of the rolling elements.
  • the spacing means can be designed, for example, as adjustable spacing means, so that the axial distance between the ring and the bearing ring and / or the radial distance between the slide elements and the raceway of the rolling elements can be set variably. In this way, the assembly tool can be used for different sizes of rolling elements.
  • the assembly tool has a holding element in order to hold the slide elements in their starting position and / or end position and / or in one or more intermediate positions.
  • a holding means can be designed as a locking element.
  • the holding element can be a pin or lever which can be moved over a holding plate of the slide elements in order to hold the slide elements in their upper or lower, ie starting or end position.
  • the holding means can be a clamping device, screwing device or the like.
  • the holding means can for example be designed as a spring-loaded bolt. Such a holding means can ensure that the Slide elements are not undesirably moved from their starting position to their end position or vice versa.
  • the ring is made from a metal and / or the slide elements are made from a plastic or a metal. If the slide elements are made of a plastic, they can be slightly elastic, whereby a further adaptation to the rolling elements or to a radial play or circumferential play of the rolling elements is possible.
  • a cage segment for a rolling bearing having at least one web or several webs connected via connecting plates, the web / webs having at least one guide surface for guiding the rolling elements in the mounted rolling bearing.
  • the rolling bodies are in contact with the guide surfaces in the mounted rolling bearing or are spaced apart from them at a small distance.
  • the cage segment preferably has two webs, a pocket in which a rolling element can be accommodated is formed between the two webs. When using such a cage segment, every second rolling element is received in a pocket.
  • the cage segment can be a pure spacer that is arranged between two rolling elements.
  • the web provides one or more contact surfaces for slide elements of such an assembly tool.
  • These contact surfaces can be arranged centrally in the axial direction (e.g. only a single, centrally arranged contact surface) or distributed in the axial direction (e.g. two axially opposite contact surfaces).
  • the assembly tool is in engagement with the cage segments through the contact surfaces and in this way can secure the individual cage segments and thus the rolling elements on the bearing ring. This means that there is no need for a one-piece cage.
  • the contact surfaces are arranged radially outside and / or radially inside the pitch circle diameter of the rolling elements.
  • the slide elements are in their end position in the free space radially outside the pitch circle diameter between two rolling elements, the contact surface of the cage segment and the raceway of the outer ring or arranged in the free space radially within the pitch circle diameter between two rolling elements, the contact surface of the cage segment and the raceway of the inner ring.
  • the contact surfaces are therefore also arranged radially outside or radially inside the pitch circle diameter of the rolling elements.
  • the guide surfaces then also encompass the rolling elements accordingly outside or inside the pitch circle diameter.
  • the contact surfaces are preferably arranged both radially inside and radially outside the pitch circle diameter of the rolling elements, since in this way the cage segments can be used flexibly for mounting both the bearing inner ring and the bearing outer ring.
  • the contact surfaces are designed as a recess which is elongated in the circumferential direction and is open towards the outer ring and / or the inner ring. Due to a circumferential play of the rolling elements and the cage segments, an offset of the cage segments with respect to the slide elements can occur. However, since the contact surfaces have a circumferential extent, the slide elements can be pushed into the contact surfaces even if the cage segments are offset. Due to the circumferential expansion of the contact surfaces, there is no need to provide a possibility of displacement of the slide elements in the circumferential direction. In order to facilitate assembly of the assembly tool or the slide elements, however, a possibility of displacement of the slide elements relative to the ring in the circumferential direction can be provided.
  • the contact surfaces can have a circumferential width which allows the slide element a circumferential play relative to the contact surface.
  • the circumferential play of the rolling elements preferably corresponds to 0.5 to 1.5 times the circumferential play of the rolling elements.
  • the contact surfaces can have a stop in the circumferential direction. This stop can be provided in both circumferential directions. The movement of the slide elements, as soon as they are pushed into the cage segments, is limited in the circumferential direction by the stop.
  • a method for assembling a bearing with an inner ring and an outer ring has the following steps: arranging the inner ring, arranging the rolling elements and cage segments on the inner ring, arranging the assembly tool described above on the inner ring, moving the slide elements of the assembly tool into their respective end position, so that the slide elements each between two rolling elements and on one Contact surface of a wall of a cage segment arranged between the two rolling elements are arranged in order to limit radial mobility of the rolling elements with respect to the bearing ring (i.e. to prevent the rolling elements from falling out), inserting the inner ring with the assembly tool and the rolling elements on a sleeve or shaft and / or in the outer ring, and remove the assembly tool.
  • the sleeve or shaft can in particular be an element of a hub unit of a turbine.
  • the assembly tool can be reattached to the inner ring and the slide elements can be moved in order to hold the rolling elements on the inner ring. Then the inner ring together with the rolling elements and the assembly tool can be removed.
  • the assembly tool By using the assembly tool, it is possible to dispense with a one-piece cage, since the slide elements take on the function of a bearing cage, so that the rolling elements are secured between the slide elements and the bearing ring.
  • the bearing can therefore be used with individual cage segments in which the slide elements of the assembly tool engage. With such an assembly method, it is therefore possible to move a bearing ring with the rolling elements as a whole without a one-piece cage. This is necessary in particular for applications with large roller bearings, such as, for example, for turbines, as described above
  • a bearing with an inner ring and an outer ring, between which rolling elements are arranged, which are held by cage segments, is proposed.
  • the bearing can be assembled using the assembly method described above.
  • a hub unit for a turbine with two tapered roller bearings which are arranged in an O-arrangement, is proposed, the tapered roller bearings each have an inner ring and an outer ring, between which tapered rollers are arranged, which are held by cage segments.
  • At least one of the tapered roller bearings can be assembled using the assembly method described above, whereby a one-piece cage is not required. Instead, the bearing with cage segments can be used, as described in more detail above.
  • Fig. 1 shows a perspective view of an assembly tool 1.
  • the assembly tool 1 has a ring 2. Through openings 4 are provided in the ring 2, through which the slide elements 6 can be pushed.
  • the slide elements 6 consist of a first tubular section 8, which is pushed through the through openings 4, a handle 10 and a second tubular section 12 to which the handle 10 is attached.
  • the second tubular section 12 preferably has a larger diameter than the through openings 4, so that the depth of insertion of the slide elements 6 is limited as a result. This defines the end position of the slide elements 6.
  • the ring 2 In order to attach the assembly tool 1 to a bearing ring, the ring 2 has a centering means 14.
  • the centering means 14, which is designed as an edge, is used to arrange the assembly tool 1 on the bearing ring, the centering means 14 resting against an outside of the bearing ring, for example a guide flange.
  • the assembly tool in the figures is designed such that it can be arranged on an inner ring of a bearing
  • the assembly tool 1 can also be designed such that it can be connected to an outer ring of a bearing.
  • the assembly tool 1 If the assembly tool 1 is arranged on a bearing ring, it interacts with a cage segment 16, as shown in FIG Fig. 2 is shown.
  • a cage segment 16 has two webs 18 which are connected at their respective ends to a connecting or base plate 20.
  • every second rolling element can be accommodated in such a cage segment.
  • the cage segments 16 In order to be able to bring the slide elements into contact with the cage segments 16, the cage segments 16 have contact surfaces 24. These contact surfaces 24 each have an extension L in the circumferential direction, which is delimited in each case by a stop surface 26. The stop surface 26 serves to keep the slide elements within the contact surface 24 to hold. The expansion L makes it possible to compensate for play in the rolling elements for the slide elements 6, since they can move between the two stop surfaces.
  • the contact surfaces 24 have guide surfaces 28 which are curved in the direction of the rolling bodies. The rolling elements can hit this.
  • Figures 3 and 4 show perspective views of an assembly tool 1 which is arranged on a bearing ring 30.
  • the bearing ring 30 is an inner ring of a bearing.
  • the inner ring 30 is equipped with rolling elements 32.
  • the assembly tool 1 is in the in Fig. 3
  • the embodiment shown is arranged on the bearing ring 30, the slide elements 6 being in their initial position.
  • the slide elements 6 are in their end position.
  • the slide elements 6 are each arranged in their end position between two rolling elements 32 of the bearing ring 30.
  • the rolling bodies 32 are spaced apart by cage segments 16.
  • the cage segments 16 are designed in such a way that a cage-like segment 16 is arranged around every second rolling element 32, a base plate 20 connecting two walls or webs 18 of the cage segment 16.
  • the centering means 14 of the assembly tool 1 rests on a guide flange 33 of the inner ring 30.
  • the slide elements 6 are arranged over a pitch circle diameter of the rolling elements 32 and are in contact with the contact surfaces 24 of the cage segments 16. In this way, the slide elements 6 are designed to hold the rolling elements 32 in their end position on the bearing ring 30.
  • the assembly tool 1 it is possible to dispense with a one-piece cage and instead, as shown here, to use cage segments 16. Since the assembly tool 1 takes on the function of a cage and secures the rolling elements 32 on the bearing ring 30, it is possible to move the bearing ring 30 with the rolling elements 32 without the rolling elements 32 falling out.
  • the assembly of the bearing ring 30 shown here involves the assembly of an inner ring 30 on a sleeve or shaft 42 of a hub unit 34 of a turbine.
  • the Hub unit 34 has two tapered roller bearings 36, 38 which are arranged in an O-arrangement.
  • the tapered roller bearings 36, 38 are mounted on the hub unit 34 from only one side, namely from the side of the tapered roller bearing 38.
  • the tapered roller bearing 36 has an inner ring 40 which is pushed onto the sleeve or shaft 42. During the assembly of the tapered roller bearing 36, the rolling elements 44 can simply be arranged on the inner ring 40, since the rolling elements 44 cannot fall down due to the O-arrangement. An outer ring 46 is then attached to the roller bearing 36. A housing 48 can then be attached to protect the bearing.
  • the bearing 38 In order to now mount the bearing 38, it is necessary either to turn the hub unit 34 around, which is difficult to carry out due to the size of the hub unit 34 of several meters in diameter. Alternatively, the bearing 38 must also be mounted from above, like the bearing 36. However, since the rolling elements 32 cannot be attached to the bearing inner ring 30 in order to insert it into the outer ring 50, since in this case the rolling elements would fall out due to the force of gravity, it was previously necessary to use a one-piece cage to hold the rolling elements 32 to hold on the bearing ring 30. However, this can be avoided by the assembly tool 1.
  • the assembly tool 1 is placed on the bearing ring 30 and the slide elements 6 are moved into their end position.
  • the rolling elements 32 are held on the bearing ring 30, as with reference to FIG Figures 1 to 4 is described.
  • This module consisting of the assembly tool 1, the bearing inner ring 30, the cage segments 16 and the rolling elements 32 can now simply be pushed onto the sleeve 42.
  • the bearing outer ring 50 can already be arranged, as in FIG Fig. 5 is shown.
  • the bearing inner ring 30 can be pushed onto the sleeve 42 as a compact module with the rolling elements 32 and the assembly tool 1.
  • the assembly tool 1 can be removed again.
  • Fig. 7 shown in the shown is how the slide members 6 are withdrawn from the assembled bearing assembly. After the slide elements 6 have been pulled out, the assembly tool 1 can be removed again in a simple manner.
  • the assembly tool shown here enables a simple assembly of a bearing ring with rolling elements without using a one-piece cage.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Telephone Set Structure (AREA)
  • Sliding-Contact Bearings (AREA)
  • Supports Or Holders For Household Use (AREA)
EP20196127.3A 2019-09-30 2020-09-15 Outil de montage et méthode d'assemblage d'un roulement avec cet outil de montage Active EP3798457B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019214953.7A DE102019214953A1 (de) 2019-09-30 2019-09-30 Montagewerkzeug

Publications (2)

Publication Number Publication Date
EP3798457A1 true EP3798457A1 (fr) 2021-03-31
EP3798457B1 EP3798457B1 (fr) 2023-03-22

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Family Applications (1)

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EP20196127.3A Active EP3798457B1 (fr) 2019-09-30 2020-09-15 Outil de montage et méthode d'assemblage d'un roulement avec cet outil de montage

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DE102014205190A1 (de) * 2014-03-20 2015-09-24 Schaeffler Technologies AG & Co. KG Montagewerkzeug für ein einreihiges Kegelrollenlager

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US20210095722A1 (en) 2021-04-01
CN112576632A (zh) 2021-03-30
EP3798457B1 (fr) 2023-03-22
US11725697B2 (en) 2023-08-15
US20210381553A1 (en) 2021-12-09
ES2944699T3 (es) 2023-06-23
DK3798457T3 (da) 2023-06-12
DE102019214953A1 (de) 2021-04-01

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